CVE-2025-53623: 
Ruby vulnerability analysis and mitigation

CVE-2025-53623 affects the Job Iteration API, an extension for ActiveJob that makes jobs interruptible and resumable. The vulnerability was discovered in versions prior to 1.11.0, specifically in the CsvEnumerator class, and was disclosed on July 14, 2025. The issue has been assigned a CVSS v4.0 score of 8.1 (HIGH) (GitHub Advisory).

The vulnerability is classified as an OS Command Injection (CWE-78) in the CsvEnumerator class. The issue stems from direct interpolation of filenames into bash commands within the count_of_rows_in_file method, allowing for potential command injection. The vulnerability was fixed by replacing shell operations with Ruby methods in version 1.11.0 (GitHub Commit).

If exploited, this vulnerability allows attackers to execute arbitrary commands on the system where the application is running. This can potentially lead to unauthorized access, data leakage, or complete system compromise (GitHub Advisory).

The issue has been patched in version 1.11.0 and above. For users unable to update immediately, recommended workarounds include avoiding the use of untrusted input in the CsvEnumerator class, ensuring proper sanitization and validation of file paths before passing them to class methods, and avoiding the use of the count_of_rows_in_file method with untrusted CSV filenames (GitHub Advisory).